It's only a partial render--I saw what I needed and didn't finish it. But I'll see if it was saved and post it...

All right, it was saved. I set the sphere as invisible to camera, which is why the background is transparent. I forget which file I used on the sphere...it was HDR and it was interior and it was by Brian James. All I remember. The light set was "Realism" from Synthetic and Blackhearted's ProStudio--I highly recommend their sets, incidentally. The material was applied to a hi-res sphere scaled up for easy viewing.